feat: aria status for when results are not ready (#252320)

Also fixes up some localized strings for consistency

Author: rzhao271

src/vs/workbench/contrib/preferences/browser/settingsEditor2.ts

@@ -766,6 +766,9 @@ export class SettingsEditor2 extends EditorPane {
 
 	toggleAiSearch(): void {
 		if (this.showAiResultsAction) {
+			if (!this.showAiResultsAction.enabled) {
+				aria.status(localize('noAiResults', "No AI results available at this time."));
+			}
 			this.showAiResultsAction.checked = !this.showAiResultsAction.checked;
 		}
 	}
@@ -1931,17 +1934,19 @@ export class SettingsEditor2 extends EditorPane {
 		} else {
 			const count = this.searchResultModel.getUniqueResultsCount();
 			let resultString: string;
-			switch (count) {
-				case 0: resultString = localize('noResults', "No Settings Found"); break;
-				case 1: resultString = localize('oneResult', "1 Setting Found"); break;
-				default: resultString = localize('moreThanOneResult', "{0} Settings Found", count);
-			}
 
 			if (showAiResultsMessage) {
-				resultString += localize({
-					key: 'aiSearchResults',
-					comment: ['This string is appended after noResults, oneResult, or moreThanOneResult']
-				}, ". AI Results Available");
+				switch (count) {
+					case 0: resultString = localize('noResultsWithAiAvailable', "No Settings Found. AI Results Available"); break;
+					case 1: resultString = localize('oneResultWithAiAvailable', "1 Setting Found. AI Results Available"); break;
+					default: resultString = localize('moreThanOneResultWithAiAvailable', "{0} Settings Found. AI Results Available", count);
+				}
+			} else {
+				switch (count) {
+					case 0: resultString = localize('noResults', "No Settings Found"); break;
+					case 1: resultString = localize('oneResult', "1 Setting Found"); break;
+					default: resultString = localize('moreThanOneResult', "{0} Settings Found", count);
+				}
 			}
 
 			this.searchResultLabel = resultString;